Cueva de las Manos. Image CC BY-SA 3.0, Wikipedia
"Remember that the classical primordial thinking assumes a human as part of the world. They couldn't reflect on existence. But what is emphasized with these prints is the fact of existence, like "I entered, I was here" and oddly this leitmotif can be later found in graffiti. Strange as it may seem to you, graffiti in fact incorporates exactly this gesture, like "I was here". Graffiti, just like a palm print, often can't be understood by an outsider, you know, the real text can be understood by a very narrow subculture, which is aware of what it means, and it's a total puzzle for the rest. The "I was here" feature is clearly seen here [at Cueva de las Manos]. This is just astonishing. The birth of a person who exists in the moment, and not just a person as a "chunk", a "piece", a "fragment" of the world."
- "ART FOR INTROVERT LTD", "Art History: From Cave Paintings to Bansky"